Detestable and First class

Detestable adjective - Not following or in accordance with standards of honor and decency.

First class is an antonym for detestable.

Nearby Words: detestation, detested, detestably, detesting

First class noun - Mail that includes letters and postcards and packages sealed against inspection.

Detestable is an antonym for first class in topics: pleasant, better, superior, excellent.